APA Edition Citation

Paul L Hancock Brian J Skinner. (2000). Oxford companion to the earth. OUP.

Chicago Edition Citation

Paul L Hancock Brian J Skinner. Oxford Companion to the Earth. Oxford: OUP, 2000.

MLA Edition Citation

Paul L Hancock Brian J Skinner. Oxford Companion to the Earth. OUP, 2000.

Warning: These citations may not always be 100% accurate.